18500740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1087}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 41674752

約数和(自身を除く): 23174012

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1087, 1702, 2174, 3404, 4255, 4348, 5435, 8510, 10870, 17020, 21740, 25001, 40219, 50002, 80438, 100004, 125005, 160876, 201095, 250010, 402190, 500020, 804380, 925037, 1850074, 3700148, 4625185, 9250370, 18500740]

約数ペア:

[(1, 18500740), (2, 9250370), (4, 4625185), (5, 3700148), (10, 1850074), (20, 925037), (23, 804380), (37, 500020), (46, 402190), (74, 250010), (92, 201095), (115, 160876), (148, 125005), (185, 100004), (230, 80438), (370, 50002), (460, 40219), (740, 25001), (851, 21740), (1087, 17020), (1702, 10870), (2174, 8510), (3404, 5435), (4255, 4348)]